Chassis construction for motor-vehicles.



C. M. FOSTER.

CHASSIS CONSTRUCTION FOR MOTOR VEHICLES.

' APPLICATION FILED FEB. 5. 19 18.

,958. Patented Ja11.14,1919. 1

fyf lj 1 U CHARLES MARSHALL FOSTER, 0F HOBART, TASMANIA, AUSTRALIA.

CHASSIS CONSTRUCTION FORMOTOR-VEHICLES.

To all whom it may concern:

Be it known that I, GHARLEs MARSHALL FOSTER, a subject of the Kin of Great Britain, and resident of 150 Collins street, Hobart, in the Statp of Tasmania, Commonwealth of Australia, motor-garage proprietor, have invented Chassis Construction for Motor-Vehicles, of which the following is a specification. i

The chassis of the usual type of motor driven vehicle as at resentjconstructed is formed of a multip lcity of parts, being frame rails and members of sheet plate, to which the runnin boards, mud guards and other parts are astened with rivets and bolts to formthe complete unit. On one double seated passenger car of well known inake the applicant has enumerated no less than one'hundred and eighty separate pieces which require to be secured or held. together. It is evident that with vibration, a chassis so constructed sets up rattling consequent upon the working loose of the parts through loosening of rivets and slackening of nuts.

The object of the present invention is to practically eliminate the whole of the separate parts of the chassis and to provide a chassis of lighter, cheaper and infinitely neater construction.

Referrin to the accompanying drawings which depict a practical application of my invention-.

Figure l-is a top plan of a chassis a1 the same.

Figs. 3 and 4: are transverse sections on lines IIIIII and IV-IV respectively.

In the construction shown the mud guards Specification of Letters Patent.

' Application filed February 5, 1918.

Patented Jan. 14:, 1919.

Serial No. 215,483.

6 are integral with the running boards 7 the outer ends of the'guards at the rear being extended downwardly and rearwardly beyond their usual length to form a fiat portion 10 to which the outer ends of the usual vehicle springs will be secured by any su of said guards be ng able means the ends disposed at a point where, in the present form of construction; the ends of the dumb irons would terminate. A similar flat portion 11 is provided between the front endsof the front mud guards. The central portion of the chassis is formed in one piece 12 preferably integral with said guards and running boards shaped and provided with orifices and depressions to suit requirements. For instance the depression 13 will form a casing for the engine crankcase and the T shaped orifice 14 is provided for the fly wheel and gear case. The whole unit constitutes a complete chassis which may be produced very cheaply and when formed of selected sheet steel will constitute a rigid structure. The outer edges of the chassis are preferably slightly rolled for the purpose of imparting rigidity at the edges.

It is to be understood that the invention is not restricted to the exact arrangement illustrated as it may be varied to suit cars having varying lengths of wheel base and mud guard arrangements.

What I claim and desire to secure by Let ters Patent is A chassis for motor cars made of a single piece of sheet metal consisting of a central frame portion, mud guards, and a running board on each longitudinal side of the frame between the mud guards.

CHARLES MARSHALL FOSTER. 

